NDLI: Modifier Adaptation for Constrained Closed-Loop Systems

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Modifier Adaptation for Constrained Closed-Loop Systems

Content Provider	Semantic Scholar
Author	Costello, Sean François, Grégory Bonvin, Dominique Marchetti, Alejandro G.
Copyright Year	2013
Abstract	The steady advance of computational methods makes model-based optimization an increasingly attractive method for process improvement. Unfortunately, the available models are often inaccurate, which results in significant plant-model mismatch. An iterative optimization method called “modifier adaptation” overcomes this obstacle by incorporating plant information into the optimization framework. A particular situation is when the plant operates under feedback control and only a model of the open-loop system is available. This paper extends modifier adaptation for constrained optimization problems to that particular situation. The inputs of the controlled plant are the setpoints, whereas the model inputs are the manipulated variables. Using this open-loop model and process measurements, the proposed algorithm guarantees both optimality and constraint satisfaction for the controlled plant upon convergence. A simulated CSTR example with constraints illustrates the method.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://infoscience.epfl.ch/record/190599/files/Costello2014_IFAC_gf_db.pdf
Alternate Webpage(s)	http://folk.ntnu.no/skoge/prost/proceedings/ifac2014/media/files/2453.pdf
Alternate Webpage(s)	http://infoscience.epfl.ch/record/190599/files/Costello2014_IFAC_gf_db.pdf
Language	English
Access Restriction	Open
Subject Keyword	Acclimatization Algorithm Algorithmic efficiency Assumed Chemical Modifier Computation Constrained optimization Constraint satisfaction Control flow Controllers Convergence (action) Eighty First-order predicate Gradient Iterative method Loss function Mathematical optimization Microwave Modifier key Optimal control Optimization problem Order of approximation Process optimization Recovery time objective Time complexity
Content Type	Text
Resource Type	Article

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